Synthesis, Structure, and Properties of Polymeric Materials
Based on Oligomeric Poly(propylene glycol)
and 2,4-Tolylene Diisocyanate

A. A. Askadski¹, L. V. Luchkina, K. A. Bychko,
L. M. Goleneva, and K. V. Konstantinov

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences,
ul. Vavilova 28, Moscow, 119991 Russia

Received March 3, 2003;
Revised Manuscript Received December 4, 2003

Abstract—Network poly(isocyanurates) based on oligomeric poly(propylene glycol) and 2,4-tolylene diisocy-
anate were prepared by the technique of block casting and investigated. It was shown that the block of the cured
material lacks intermediate layers and interfaces, with the elastic modulus of the block smoothly varying along
its length. The kinetic features of formation of polymer networks were studied, and the optimal conditions of
their synthesis were determined (temperature, time, and completeness of the cure reaction). The effect of dyes,
pigments, and catalysts on the properties of networks is considered.

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